22712488 has 16 divisors (see below), whose sum is σ = 42759360. Its totient is φ = 11310000.

The previous prime is 22712447. The next prime is 22712489. The reversal of 22712488 is 88421722.

It is a super-2 number, since 2×22712488² = 1031714222300288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22712489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3648 + ... + 7663.

It is an arithmetic number, because the mean of its divisors is an integer number (2672460).

Almost surely, 2^22712488 is an apocalyptic number.

It is an amenable number.

22712488 is a deficient number, since it is larger than the sum of its proper divisors (20046872).

22712488 is a wasteful number, since it uses less digits than its factorization.

22712488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11568 (or 11564 counting only the distinct ones).

The product of its digits is 14336, while the sum is 34.

The square root of 22712488 is about 4765.7620586848. The cubic root of 22712488 is about 283.1967316911.

The spelling of 22712488 in words is "twenty-two million, seven hundred twelve thousand, four hundred eighty-eight".